PARASITIC HYMENOPTERA AND THEIR INFLUENCE ON THE NUMBER OF LEPIDOPTERA PESTS FOR BRASSICA OLERACAE L. VAR CAPITATA FROM THE EXPERIMENTAL FIELD OF THE VEGETABLE RESEARCH AND DEVELOPMENT STATION BACĂU
GABRIEL-ALIN IOSOB(1), MARIA CĂLIN(1), TINA OANA CRISTEA(1), SILVICA AMBARUŞ(1), CREOLA BREZEANU(1), PETRE MARIAN BREZEANU(1), MARIA PRISECARU(2), ALEXANDRU BUTE(1), MARIANA CALARA(1), ANDREEA ANTAL TREMURICI(1), CARMINA MIHAELA BENCHEA(1), DANIELA BOURUC(1), DAN-IOAN AVASILOAIEI(1), SEBASTIAN-PETRU MUSCALU(1)
1. Vegetable Research and Development Station Bacau, Calea Barladului, No. 220, Bacau, code: 600388, e-mail: iosob.gabriel@gmail.com 2. „Vasile Alecsandri”, University of Bacau, Faculty of Science, Department of Biology, Marasesti Street, no. 157, Bacau, Romania, e-mail: prisecaru_maria@yahoo.com
Abstract
In the experimental fieldon the autumn cabbage, Silviana variety of Vegetable Research and Development Station Bacău, four Lepidoptera species have been identified as major pests (Mamestra brassicae, Discestra trifolii, Pieris brassicae and Plutella xylostella) in 2019. Were collected biologic material represented by clutchs of eggs. In the laboratory, daily observations were made,to see the degree of parasitic attack. The highest density of parasitic Hymenopterawas recorded by T. evanescence at all M. brassicaeeggs.